TMM Wills Point 23 -lithified (Paleocene to of the United States)

Where: Bastrop County, Texas (30.1° N, 97.5° W: paleocoordinates 34.9° N, 79.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Wills Point Formation (Midway Group), Early/Lower Paleocene to Early/Lower Paleocene (66.0 - 58.7 Ma)

• labeled Midway Group, likely Wills Point

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, sandy grainstone

• very well lithified sandy grainstone

Size class: mesofossils

Preservation: mold/impression, replaced with calcite

Reposited in the TMM

• TMM Catalog #NPL 4668

Primary reference: J. A. Sessa, M. E. Patzkowsky, and T. J. Bralower. 2009. Impact of lithification on the diversity, size distribution, and recovery dynamics of marine invertebrate assemblages. Geology 37(2):115-118 [M. Patzkowsky/J. Sessa/J. Sessa]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86436: authorized by Mark Patzkowsky, entered by Jocelyn Sessa on 02.02.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Cucullaeidae
Cucullaea sp. Lamarck 1801 clam
 Carditida - Carditidae
Venericardia sp. Lamarck 1801 clam
"Venericardia bulla" = Venericardia (Baluchicardia) bulla Dall 1903 clam
 Carditida - Crassatellidae
Crassatella sp. Lamarck 1799 clam
 Thraciida - Periplomatidae
Periploma sp. Schumacher 1816 clam
 Cardiida - Veneridae
Pitar sp. Römer 1857 venus clam
 Nuculida - Nuculidae
Nucula sp. Lamarck 1799 nut clam
 Nuculanida - Nuculanidae
Jupiteria sp. Bellardi 1875 pointed nut clam
Gastropoda
 Cerithioidea - Turritellidae
Turritella sp. Lamarck 1799 turret shell
Anthozoa
 Hexacorallia -
Scleractinia indet. Bourne 1900 stony coral